#2F358B#2F358B

#2F358B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.9% C 0.141 H 274.5°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#2F358B
RGB	rgb(47, 53, 139)
HSL	hsl(236, 49%, 36%)
HSV	hsv(236, 66%, 55%)
CMYK	cmyk(66.2%, 61.9%, 0%, 45.5%)
CIE-LAB	lab(26.77, 26.24, -48.74)
CIE-LCH	lch(26.77, 55.36, 298.30°)
OKLab	oklab(37.92% 0.0109 -0.1404)
OKLCH	oklch(37.92% 0.141 274.5)
XYZ	xyz(7.1041, 5.0140, 25.0145)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F358B #8B852F

analogous

#2F638B #2F358B #572F8B

triadic

#2F358B #8B2F35 #358B2F

tetradic

#2F358B #8B2F63 #8B852F #2F8B57

square

#2F358B #8B2F63 #8B852F #2F8B57

split-complementary

#2F358B #8B572F #638B2F

monochromatic

#101230 #20245D #2F358B #3E46B9 #686FCC

Accessibility & contrast

On white

10.48

#2F358B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#2F358B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F358B

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F358B	#FFFFFF	#000000	##FFFFFF
##2F358B	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438E

Deuteranopia (green-blind)

#003B89

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f358b;
/* rgb */ color: rgb(47, 53, 139);
/* oklch */ color: oklch(37.9% 0.141 274.5);

Tailwind

colors: {
  custom: {
    50: '#736cae',
    500: '#2f358b',
    950: '#000000',
  },
}

SCSS

$custom: #2f358b;
$custom-light: #736cae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f358b",
  "rgb": {
    "r": 47,
    "g": 53,
    "b": 139
  },
  "hsl": {
    "h": 236.087,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37925,
    "c": 0.14078,
    "h": 274.5
  },
  "luminance": 0.05015
}

Semantic roles & 50–950 ramp

primary

#2F358B

secondary

#B3AE63

accent

#D04FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #2F358B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →